Bumpus quarry, Albany, Maine
David M. Larrabee, K.S. Adams
1949, Open-File Report 49-36
No abstract available. ...
Aeromagnetic maps and second vertical derivative maps of Great Sitkin Island, Northern Adak Island, and part of northeastern Umnak Island, Alaska
Isidore Zietz, Roland G. Henderson
1949, Open-File Report 49-9
The eight attached maps were constructed from data taken on Project Volcano in the summer of 1947. The project was sponsored by the Office of Naval Research and conducted by the U.S. Geological Survey in cooperation with the Naval Ordnance Laboratory. Field work was done by Fred Keller, Jr., and...
Preliminary aeromagnetic map covering Fountain County, Indiana
John R. Henderson
1949, Open-File Report 49-30
Ground-water resources of Deer Valley, Maricopa County, Arizona
F.I. Bluhm, Henry Newton Wolcott, John David Hem
1949, Open-File Report 49-131
Preliminary report on water-power resources of Power Creek near Cordova, Alaska
Arthur Johnson
1949, Open-File Report 49-13
Unevaluated report on the geology of powersites in Nooksack River Basin above Deming, Washington
Andrew F. Bateman Jr.
1949, Open-File Report 79-416
Ground-water outflow from the Chino Basin, California, and the controlling geologic and hydrologic conditions
A. A. Garrett, H.G. Thomasson Jr.
1949, Open-File Report 49-72
Preliminary report on the bedded manganese of the Lake Mead region, Nevada and Arizona
V.E. McKelvey, J. H. Wiese, V. H. Johnson
1949, Bulletin 948-D
No abstract available....
Antimony deposits of El Antimonio district, Sonora, Mexico
Donald Edward White, Reinaldo Guiza Jr.
1949, Bulletin 962-B
Manganese resources of the Artillery Mountains region, Mohave County, Arizona
Samuel Grossman Lasky, Benjamin N. Webber
1949, Bulletin 961
Preliminary report on corundum deposits in the Buck Creek peridotite, Clay County, North Carolina
Jarvis B. Hadley
1949, Bulletin 948-E
Manganese deposits of the Serra do Navio district, Territory of Amapa, Brazil
John Van N. Dorr, Charles Frederick Park Jr., Glycon de Paiva Teixeira
1949, Bulletin 964-A
Chromite deposits near Seiad and McGuffy Creeks, Siskiyou County, California
Francis Gerritt Wells, Clay Taylor Smith, Garn A. Rynearson, John S. Livermore
1949, Bulletin 948-B
The chromite deposits described in this report are in northcentral Siskiyou County, Calif. They are in two long tabular masses of peridotite which lie end to end and trend northnorthwest across the valley of the Klamath River. The Seiad Creek-Red Butte mass extends 10 miles north of the river and...
Structural control of the gold deposits of the Cripple Creek district, Teller County, Colorado
Albert Herbert Koschmann
1949, Bulletin 955-B
Bibliography of North American geology, 1946 and 1947
Emma Mertins Thom, Marjorie Hooker, R.R. Dunaven
1949, Bulletin 958
Some mineral investigations in southeastern Alaska
William Stephens Twenhofel, John C. Reed, G.O. Gates
1949, Bulletin 963-A
Geologic map and sections, Burt mica mine, Custer County, South Dakota
John Wagstaff Adams
1949, Open-File Report 49-18
Four preliminary aeromagnetic maps covering Clay, Knox, Sullivan, and Vigo Counties, Indiana
John R. Henderson
1949, Open-File Report 49-29
Geologic maps of fossil localities in southeastern Pennsylvania
George W. Stose, A.J. Stose
1949, Open-File Report 49-49
Geologic maps of fossil localities in southeastern Pennsylvania Jan. 18, 1949
George W. Stose
1949, Open-File Report 49-48
Geologic maps of the antimony deposits in Antimony Canyon (Coyote Creek), Garfield County, Utah
Donald Cave Duncan, W.H. Myers, F. M. Byers
1949, Open-File Report 49-10
Total intensity aeromagnetic map of the Magnet Cove area, Hot Spring County, Arkansas
Fred Keller, John R. Henderson
1949, Open-File Report 49-34
No abstract available. ...
Geochemical prospecting for ores; a progress report
Herbert Edwin Hawkes
1949, Economic Geology (44) 706-712
Methods of prospecting for mineral deposits by means of chemical studies of residual soil, alluvium, glacial moraine, vegetation, and natural water were first applied on a systematic scale in Scandinavia and Russia about 15 years ago. Since the war, work in this field has been undertaken by several independent groups...
The U.S.G.S. phosphate-fluoride-iodate method for the determination of very small amounts of thorium in naturally occurring materials
F.S. Crimaldi, J.G. Fairchild
1949, Report
Detailed procedures are presented for the determination of very small percentages of thorium. The methods are designed to determine 0.001% of thorium oxide as the lower limit and are applicable to nearly all types of rocks. For quantities below a milligram of ThO2, the thorium is determined nephelometrically as the...
Les rivières et les sources de la Plaine du Cul-de-Sac: extrait du rapport sur les eaux souterraines de la Plaine du Cul-de-Sac
George C. Taylor Jr., Remy C. Lemoine
1949, Report
Les principales rivières de la Plaine du Cul-de-Sac, la Rivière Grise ou Grande Rivière du Cul-de-Sac et la Rivière Blanche, prennent naissance sur le flanc Nord du Massif de la Selle à des altitudes de 1,300 à 1,800 mètres au dessus du niveau de la mer. Elles coulent à l’amont...